body{color:#34495e;
  background-color:#ddd;

  font-family:"Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Heiti SC", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  font-size:18px;
  line-height:1.72222;
}